2,2',3,3'-tetramethoxy-5,5'-dimethyl biphenyl | 41565-02-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,2',3,3'-tetramethoxy-5,5'-dimethyl biphenyl
• 英文别名: 2,2',3,3'-Tetramethoxy-5,5'-dimethyl-biphenyl；1-(2,3-dimethoxy-5-methylphenyl)-2,3-dimethoxy-5-methylbenzene
• CAS: 41565-02-0
• 化学式: C₁₈H₂₂O₄
• 分子量: 302.37
• InChiKey: WRWNPWATYYXPKG-UHFFFAOYSA-N

物化性质

• 熔点：
  1024 °C(Solv: methanol (67-56-1))
• 沸点：
  348.3±37.0 °C(Predicted)
• 密度：
  1.067±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  22
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  2,2',3,3'-tetramethoxy-5,5'-dimethyl biphenyl 在 2,2'-(1,2-肼二亚基)二[3-乙基-2,3-二氢-6-苯并噻唑磺酸 、 laccase 作用下， 以 水 为溶剂， 生成 5,5',6,6'-tetramethoxybiphenyl-3,3'-dicarbaldehyde
  参考文献：
  名称：

  The early oxidative biodegradation steps of residual kraft lignin models with laccase

  摘要：

  A number of model compounds resembling the fundamental bonding patterns of residual kraft lignin, including a series of stilbenes, were incubated with laccase from Trametes versicolor in the presence and absence of delignification 'mediators' ABTS and HBT. The condensed kraft lignin model compounds seem to undergo initial degradation by laccase mainly via benzylic oxidation, demethylation and hydroxylation reactions. Phenolic 5-5', diphenylmethane and alpha-5 lignin models were found to be degraded mainly via side-chain oxidation reactions. Among the models studied, a phenolic stilbene was found to be the most reactive, yielding several products showing side-chain oxidation/transposition, demethoxylation and hydroxylation reactions. Non-phenolic 5-5', diphenylmethane and stilbene model compounds were found unreactive even in the presence of the laccase-mediator system. (C) 1998 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0968-0896(98)00173-4
• 作为产物：
  描述：

  3-溴-4,5-二甲氧基苯甲醛 在 铜 作用下， 反应 2.0h， 生成 2,2',3,3'-tetramethoxy-5,5'-dimethyl biphenyl
  参考文献：
  名称：

  磷脂酶及相关化合物的研究。三，合成2,2'，3-三甲氧基二苯醚-4'，5-和-4'，6-二羧醛。

  摘要：

  作为合成Ib的重要中间体，我们研究了几种制备二醛（IX）的方法，并显著提高了总产率。同时，合成IIb的中间体XXXI也进行了研究。

  DOI：

  10.1248/cpb.11.1484

文献信息

• Studies related to the chemistry of melanins. Part VII. Attempts to synthesise hydroxylated bi-indolyls, biphenyls, and indoline-2-carboxylic acid as possible intermediates in the formation of melanins from 3,4-dihydroxyphenethylamine and 3,4-dihydroxyphenylalanine
  作者：R. F. Chapman、G. A. Swan

  DOI：10.1039/j39700000865

  日期：——

  Syntheses are described of 5,5′-, 6,6′-, and 5,6′-bis-(2-aminoethyl)-2,2′,3,3′-tetrahydroxybiphenyl, 2,4-bis-(3,4-dihydroxyphenyl)butane-1,3-diamine, and 2,3-bis-(3,4-dihydroxyphenyl)butane-1,4-diamine dihydrochlorides, 5,5′-, 6,6′-, and 5,6′-bis-(2-amino-2-carboxyethyl)-2,2′,3,3′-tetrahydroxybiphenyl, and 5,6-dihydroxyindoline-2-carboxylic acid.

  描述了5,5'-，6,6'-和5,6'-双-（2-氨基乙基）-2,2'，3,3'-四羟基联苯，2,4-双-（3 1,4-二羟基苯基）丁烷-1,3-二胺和2,3-双-（3,4-二羟基苯基）丁烷-1,4-二胺二盐酸盐，5,5'-，6,6'-和5 ，6′-双-（2-氨基-2-羧乙基）-2，2′，3，3′-四羟基联苯和5，6-二羟基二氢吲哚-2-羧酸。
• New route to herbertanes via a Suzuki cross-coupling reaction: synthesis of herbertenediol
  作者：Antonio Abad、Consuelo Agulló、Ana C Cuñat、Diego Jiménez、Remedios H Perni

  DOI：10.1016/s0040-4020(01)00987-5

  日期：2001.11

  The synthesis of herbertenediol, a relevant member of the herbertane-type sesquiterpene family, is described. The synthesis is based on a new general approach to this group of sesquiterpenes where the herbertane skeleton is constructed using a Suzuki cross-coupling reaction and a [2,3]-sigmatropic Still–Wittig rearrangement as key synthetic steps.

  描述了赫伯丹型倍半萜烯家族相关成员赫伯汀二醇的合成。该合成基于对这组倍半萜的新通用方法，其中使用铃木交叉偶联反应和[2,3]-σ斯蒂尔-维蒂希重排作为关键合成步骤构建了赫伯坦骨架。
• Biomimetic degradation of lignin and lignin model compounds by synthetic anionic and cationic water soluble manganese and iron porphyrins
  作者：Claudia Crestini、Raffaele Saladino、Pietro Tagliatesta、Tristano Boschi

  DOI：10.1016/s0968-0896(99)00105-4

  日期：1999.9

  meso-tetra(N-methylpyridinio)porphyrin pentaacetate (TPyMePMn(CH3COO)5) was compared on the basis of the oxidation extent of the models tested. Manganese porphyrins were found more effective in degrading lignin substructures than iron ones. Among them the cationic TPyMePMn (CH3COO)5, never used before in lignin oxidation, showed to be the best catalyst. The catalytic activity of porphyrins in hydrogen peroxide

  据报道，在过氧化氢的存在下，几种水溶性的阴离子和阳离子铁和锰卟啉可对5-5'缩合和二苯甲烷木质素模型化合物进行仿生氧化。锰和铁的中-四（2,6-二氯-3-磺基苯基）卟啉氯化物（分别为TDCSPPMnCl和TDCSPPFeCl），中-四-3-磺基苯基卟啉氯化物（TSPPMnCl）和锰的中-四（N根据所测试模型的氧化程度，比较了-甲基吡啶基）卟啉五乙酸盐（TPyMePMn（CH3COO）5）。发现锰卟啉在降解木质素亚结构方面比铁更有效。其中，以前从未在木质素氧化中使用过的阳离子TPyMePMn（CH3COO）5是最好的催化剂。还研究了卟啉在残留硫酸盐木质素的过氧化氢氧化中的催化活性。定量31P NMR的使用可以根据所使用的催化剂，专注于发生不同的降解途径。TPyMePMn（CH3COO）5能够对木质素结构进行最广泛的降解，脂族羟基和羧酸的减少证明了这一点。值得注意的是，在锰卟啉催化残留的硫酸盐
• New phenolic polymers and preparation processes thereof
  申请人：Université de Bordeaux

  公开号：EP3002303A1

  公开（公告）日：2016-04-06

  The present invention concerns the use of a compound having the following formula (I): for the preparation of a polymer. The present invention also concerns the polymers obtained from the polymerization of compound of formula (I), and their processes of preparation.

  本发明涉及具有下式 (I) 的化合物的用途： 用于制备聚合物。 本发明还涉及由式（I）化合物聚合得到的聚合物及其制备工艺。
• 170. Biphenylenes. Part X. Tetra-, hexa-, and octa-methoxybiphenylenes
  作者：Wilson Baker、N. J. McLean、J. F. W. McOmie

  DOI：10.1039/jr9630000922

  日期：——